[PATCH v2 12/21] sha1_name: convert disambiguate_hint_fn to take object_id

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Convert this function pointer type and the functions that implement it
to take a struct object_id.  Introduce a temporary in
show_ambiguous_object to avoid having to convert for_each_abbrev at this
point.

Signed-off-by: brian m. carlson <sandals@xxxxxxxxxxxxxxxxxxxx>
---
 sha1_name.c | 64 ++++++++++++++++++++++++++++++++-----------------------------
 1 file changed, 34 insertions(+), 30 deletions(-)

diff --git a/sha1_name.c b/sha1_name.c
index cf6f4be0c6..2e38aedfa5 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -11,7 +11,7 @@
 
 static int get_sha1_oneline(const char *, unsigned char *, struct commit_list *);
 
-typedef int (*disambiguate_hint_fn)(const unsigned char *, void *);
+typedef int (*disambiguate_hint_fn)(const struct object_id *, void *);
 
 struct disambiguate_state {
 	int len; /* length of prefix in hex chars */
@@ -29,7 +29,7 @@ struct disambiguate_state {
 	unsigned always_call_fn:1;
 };
 
-static void update_candidates(struct disambiguate_state *ds, const unsigned char *current)
+static void update_candidates(struct disambiguate_state *ds, const struct object_id *current)
 {
 	if (ds->always_call_fn) {
 		ds->ambiguous = ds->fn(current, ds->cb_data) ? 1 : 0;
@@ -37,10 +37,10 @@ static void update_candidates(struct disambiguate_state *ds, const unsigned char
 	}
 	if (!ds->candidate_exists) {
 		/* this is the first candidate */
-		hashcpy(ds->candidate.hash, current);
+		oidcpy(&ds->candidate, current);
 		ds->candidate_exists = 1;
 		return;
-	} else if (!hashcmp(ds->candidate.hash, current)) {
+	} else if (!oidcmp(&ds->candidate, current)) {
 		/* the same as what we already have seen */
 		return;
 	}
@@ -52,14 +52,14 @@ static void update_candidates(struct disambiguate_state *ds, const unsigned char
 	}
 
 	if (!ds->candidate_checked) {
-		ds->candidate_ok = ds->fn(ds->candidate.hash, ds->cb_data);
+		ds->candidate_ok = ds->fn(&ds->candidate, ds->cb_data);
 		ds->disambiguate_fn_used = 1;
 		ds->candidate_checked = 1;
 	}
 
 	if (!ds->candidate_ok) {
 		/* discard the candidate; we know it does not satisfy fn */
-		hashcpy(ds->candidate.hash, current);
+		oidcpy(&ds->candidate, current);
 		ds->candidate_checked = 0;
 		return;
 	}
@@ -107,15 +107,15 @@ static void find_short_object_filename(struct disambiguate_state *ds)
 			continue;
 
 		while (!ds->ambiguous && (de = readdir(dir)) != NULL) {
-			unsigned char sha1[20];
+			struct object_id oid;
 
-			if (strlen(de->d_name) != 38)
+			if (strlen(de->d_name) != GIT_SHA1_HEXSZ - 2)
 				continue;
 			if (memcmp(de->d_name, ds->hex_pfx + 2, ds->len - 2))
 				continue;
-			memcpy(hex + 2, de->d_name, 38);
-			if (!get_sha1_hex(hex, sha1))
-				update_candidates(ds, sha1);
+			memcpy(hex + 2, de->d_name, GIT_SHA1_HEXSZ - 2);
+			if (!get_oid_hex(hex, &oid))
+				update_candidates(ds, &oid);
 		}
 		closedir(dir);
 	}
@@ -140,7 +140,7 @@ static void unique_in_pack(struct packed_git *p,
 			   struct disambiguate_state *ds)
 {
 	uint32_t num, last, i, first = 0;
-	const unsigned char *current = NULL;
+	const struct object_id *current = NULL;
 
 	open_pack_index(p);
 	num = p->num_objects;
@@ -169,8 +169,9 @@ static void unique_in_pack(struct packed_git *p,
 	 * 0, 1 or more objects that actually match(es).
 	 */
 	for (i = first; i < num && !ds->ambiguous; i++) {
-		current = nth_packed_object_sha1(p, i);
-		if (!match_sha(ds->len, ds->bin_pfx.hash, current))
+		struct object_id oid;
+		current = nth_packed_object_oid(&oid, p, i);
+		if (!match_sha(ds->len, ds->bin_pfx.hash, current->hash))
 			break;
 		update_candidates(ds, current);
 	}
@@ -213,7 +214,7 @@ static int finish_object_disambiguation(struct disambiguate_state *ds,
 		 * same repository!
 		 */
 		ds->candidate_ok = (!ds->disambiguate_fn_used ||
-				    ds->fn(ds->candidate.hash, ds->cb_data));
+				    ds->fn(&ds->candidate, ds->cb_data));
 
 	if (!ds->candidate_ok)
 		return SHORT_NAME_AMBIGUOUS;
@@ -222,57 +223,57 @@ static int finish_object_disambiguation(struct disambiguate_state *ds,
 	return 0;
 }
 
-static int disambiguate_commit_only(const unsigned char *sha1, void *cb_data_unused)
+static int disambiguate_commit_only(const struct object_id *oid, void *cb_data_unused)
 {
-	int kind = sha1_object_info(sha1, NULL);
+	int kind = sha1_object_info(oid->hash, NULL);
 	return kind == OBJ_COMMIT;
 }
 
-static int disambiguate_committish_only(const unsigned char *sha1, void *cb_data_unused)
+static int disambiguate_committish_only(const struct object_id *oid, void *cb_data_unused)
 {
 	struct object *obj;
 	int kind;
 
-	kind = sha1_object_info(sha1, NULL);
+	kind = sha1_object_info(oid->hash, NULL);
 	if (kind == OBJ_COMMIT)
 		return 1;
 	if (kind != OBJ_TAG)
 		return 0;
 
 	/* We need to do this the hard way... */
-	obj = deref_tag(parse_object(sha1), NULL, 0);
+	obj = deref_tag(parse_object(oid->hash), NULL, 0);
 	if (obj && obj->type == OBJ_COMMIT)
 		return 1;
 	return 0;
 }
 
-static int disambiguate_tree_only(const unsigned char *sha1, void *cb_data_unused)
+static int disambiguate_tree_only(const struct object_id *oid, void *cb_data_unused)
 {
-	int kind = sha1_object_info(sha1, NULL);
+	int kind = sha1_object_info(oid->hash, NULL);
 	return kind == OBJ_TREE;
 }
 
-static int disambiguate_treeish_only(const unsigned char *sha1, void *cb_data_unused)
+static int disambiguate_treeish_only(const struct object_id *oid, void *cb_data_unused)
 {
 	struct object *obj;
 	int kind;
 
-	kind = sha1_object_info(sha1, NULL);
+	kind = sha1_object_info(oid->hash, NULL);
 	if (kind == OBJ_TREE || kind == OBJ_COMMIT)
 		return 1;
 	if (kind != OBJ_TAG)
 		return 0;
 
 	/* We need to do this the hard way... */
-	obj = deref_tag(parse_object(sha1), NULL, 0);
+	obj = deref_tag(parse_object(oid->hash), NULL, 0);
 	if (obj && (obj->type == OBJ_TREE || obj->type == OBJ_COMMIT))
 		return 1;
 	return 0;
 }
 
-static int disambiguate_blob_only(const unsigned char *sha1, void *cb_data_unused)
+static int disambiguate_blob_only(const struct object_id *oid, void *cb_data_unused)
 {
-	int kind = sha1_object_info(sha1, NULL);
+	int kind = sha1_object_info(oid->hash, NULL);
 	return kind == OBJ_BLOB;
 }
 
@@ -344,10 +345,13 @@ static int init_object_disambiguation(const char *name, int len,
 static int show_ambiguous_object(const unsigned char *sha1, void *data)
 {
 	const struct disambiguate_state *ds = data;
+	struct object_id oid;
 	struct strbuf desc = STRBUF_INIT;
 	int type;
 
-	if (ds->fn && !ds->fn(sha1, ds->cb_data))
+
+	hashcpy(oid.hash, sha1);
+	if (ds->fn && !ds->fn(&oid, ds->cb_data))
 		return 0;
 
 	type = sha1_object_info(sha1, NULL);
@@ -422,9 +426,9 @@ static int get_short_sha1(const char *name, int len, unsigned char *sha1,
 	return status;
 }
 
-static int collect_ambiguous(const unsigned char *sha1, void *data)
+static int collect_ambiguous(const struct object_id *oid, void *data)
 {
-	sha1_array_append(data, sha1);
+	sha1_array_append(data, oid->hash);
 	return 0;
 }
 



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